Shadows

Shadows are now implemented on some objects and the terrain. There are still adjustments needed in order for things to run faster and more accurate.

I’ve used 5 days trying to fix shadows with shaders by myself. Well, it didn’t look good at all and it didn’t look like shadows either. So I guess now it’s time to admit that it can be wise to use others solutions sometimes. As for shadows, we are now using XEffects.